/**** 
* Plugins
****/ 
var tween = LK.import("@upit/tween.v1");
var storage = LK.import("@upit/storage.v1");

/**** 
* Classes
****/ 
var BackButton = Container.expand(function (text) {
	var self = Container.call(this);
	var buttonBg = self.attachAsset('backButton', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	var buttonText = new Text2(text, {
		size: 40,
		fill: 0xFFFFFF
	});
	buttonText.anchor.set(0.5, 0.5);
	self.addChild(buttonText);
	self.down = function (x, y, obj) {
		tween.to(self.scale, 200, {
			x: 0.9,
			y: 0.9
		});
	};
	self.up = function (x, y, obj) {
		tween.to(self.scale, 200, {
			x: 1.0,
			y: 1.0
		});
	};
	return self;
});
var Debris = Container.expand(function () {
	var self = Container.call(this);
	var graphics = self.attachAsset('debris', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 6;
	self.lastY = undefined;
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});
var MenuButton = Container.expand(function (text, color) {
	var self = Container.call(this);
	var buttonBg = self.attachAsset('menuButton', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	if (color) buttonBg.tint = color;
	var buttonText = new Text2(text, {
		size: 60,
		fill: 0xFFFFFF
	});
	buttonText.anchor.set(0.5, 0.5);
	self.addChild(buttonText);
	self.down = function (x, y, obj) {
		tween.to(self.scale, 200, {
			x: 0.9,
			y: 0.9
		});
	};
	self.up = function (x, y, obj) {
		tween.to(self.scale, 200, {
			x: 1.0,
			y: 1.0
		});
	};
	return self;
});
var Meteorite = Container.expand(function () {
	var self = Container.call(this);
	var graphics = self.attachAsset('meteorite', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 4;
	self.lastY = undefined;
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});
var SensitivitySlider = Container.expand(function () {
	var self = Container.call(this);
	var sliderBar = self.attachAsset('sensSlider', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	var sliderHandle = self.addChild(LK.getAsset('sensHandle', {
		anchorX: 0.5,
		anchorY: 0.5
	}));
	self.minX = -280;
	self.maxX = 280;
	self.isDragging = false;
	self.down = function (x, y, obj) {
		self.isDragging = true;
		self.updateHandle(x);
	};
	self.up = function (x, y, obj) {
		self.isDragging = false;
	};
	self.updateHandle = function (x) {
		var localX = x - self.x;
		localX = Math.max(self.minX, Math.min(self.maxX, localX));
		sliderHandle.x = localX;
	};
	self.getSensitivity = function () {
		return (sliderHandle.x + 280) / 560; // 0 to 1
	};
	self.setSensitivity = function (value) {
		sliderHandle.x = value * 560 - 280;
	};
	return self;
});
var SettingsButton = Container.expand(function (text) {
	var self = Container.call(this);
	var buttonBg = self.attachAsset('settingsButton', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	var buttonText = new Text2(text, {
		size: 50,
		fill: 0xFFFFFF
	});
	buttonText.anchor.set(0.5, 0.5);
	self.addChild(buttonText);
	self.down = function (x, y, obj) {
		tween.to(self.scale, 200, {
			x: 0.9,
			y: 0.9
		});
	};
	self.up = function (x, y, obj) {
		tween.to(self.scale, 200, {
			x: 1.0,
			y: 1.0
		});
	};
	return self;
});
var Spaceship = Container.expand(function () {
	var self = Container.call(this);
	var graphics = self.attachAsset('spaceship', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	return self;
});
var TouchSlider = Container.expand(function () {
	var self = Container.call(this);
	var sliderBar = self.attachAsset('sliderBar', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	var sliderHandle = self.addChild(LK.getAsset('sliderHandle', {
		anchorX: 0.5,
		anchorY: 0.5
	}));
	self.minX = -380;
	self.maxX = 380;
	self.isDragging = false;
	self.down = function (x, y, obj) {
		self.isDragging = true;
		self.updateHandle(x);
	};
	self.up = function (x, y, obj) {
		self.isDragging = false;
	};
	self.updateHandle = function (x) {
		var localX = x - self.x;
		localX = Math.max(self.minX, Math.min(self.maxX, localX));
		sliderHandle.x = localX;
	};
	self.getSliderValue = function () {
		return sliderHandle.x / 380;
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x000011
});

/**** 
* Game Code
****/ 
// Game state management
var gameState = 'menu'; // 'menu', 'settings', 'playing'
var sensitivity = storage.get('sensitivity') || 1.0;
// Menu elements
var titleText = new Text2('SPACE DODGER', {
	size: 120,
	fill: 0x00aaff
});
titleText.anchor.set(0.5, 0.5);
titleText.x = 2048 / 2;
titleText.y = 600;
game.addChild(titleText);
var startButton = game.addChild(new MenuButton('INICIAR PARTIDA', 0x4444aa));
startButton.x = 2048 / 2;
startButton.y = 1200;
var settingsButton = game.addChild(new SettingsButton('SENSIBILIDAD'));
settingsButton.x = 2048 / 2;
settingsButton.y = 1400;
// Settings menu elements (initially hidden)
var settingsTitle = new Text2('AJUSTAR SENSIBILIDAD', {
	size: 80,
	fill: 0xFFFFFF
});
settingsTitle.anchor.set(0.5, 0.5);
settingsTitle.x = 2048 / 2;
settingsTitle.y = 800;
settingsTitle.visible = false;
game.addChild(settingsTitle);
var sensitivitySlider = game.addChild(new SensitivitySlider());
sensitivitySlider.x = 2048 / 2;
sensitivitySlider.y = 1200;
sensitivitySlider.visible = false;
sensitivitySlider.setSensitivity(sensitivity);
var sensValueText = new Text2('Sensibilidad: ' + Math.round(sensitivity * 100) + '%', {
	size: 60,
	fill: 0xFFFFFF
});
sensValueText.anchor.set(0.5, 0.5);
sensValueText.x = 2048 / 2;
sensValueText.y = 1350;
sensValueText.visible = false;
game.addChild(sensValueText);
var backButton = game.addChild(new BackButton('VOLVER'));
backButton.x = 2048 / 2;
backButton.y = 1500;
backButton.visible = false;
// Decorative elements
var stars = [];
for (var i = 0; i < 50; i++) {
	var star = game.addChild(LK.getAsset('star', {
		anchorX: 0.5,
		anchorY: 0.5
	}));
	star.x = Math.random() * 2048;
	star.y = Math.random() * 2732;
	star.alpha = Math.random() * 0.8 + 0.2;
	stars.push(star);
}
var planet1 = game.addChild(LK.getAsset('planet', {
	anchorX: 0.5,
	anchorY: 0.5
}));
planet1.x = 200;
planet1.y = 300;
planet1.alpha = 0.6;
planet1.tint = 0x8888ff;
var planet2 = game.addChild(LK.getAsset('planet', {
	anchorX: 0.5,
	anchorY: 0.5
}));
planet2.x = 1800;
planet2.y = 2400;
planet2.alpha = 0.4;
planet2.tint = 0xff8888;
planet2.scaleX = 0.7;
planet2.scaleY = 0.7;
// Game elements (initially hidden)
var spaceship;
var obstacles = [];
var obstacleSpawnTimer = 0;
var obstacleSpawnRate = 90;
var gameSpeed = 1;
var spaceshipSpeed = 1;
var survivalTime = 0;
var difficultyTimer = 0;
var lastScoreCheck = 0;
var slider;
// GUI elements (created but initially hidden)
var scoreTxt = new Text2('0', {
	size: 80,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
scoreTxt.visible = false;
LK.gui.top.addChild(scoreTxt);
var timeTxt = new Text2('Time: 0s', {
	size: 60,
	fill: 0xFFFFFF
});
timeTxt.anchor.set(1, 0);
timeTxt.visible = false;
LK.gui.topRight.addChild(timeTxt);
timeTxt.x = -20;
timeTxt.y = 100;
game.move = function (x, y, obj) {
	if (gameState === 'playing' && slider && slider.isDragging) {
		slider.updateHandle(x);
		var sliderValue = slider.getSliderValue();
		spaceship.x = 2048 / 2 + sliderValue * 800 * spaceshipSpeed * sensitivity;
		spaceship.x = Math.max(100, Math.min(1948, spaceship.x));
	} else if (gameState === 'settings' && sensitivitySlider.isDragging) {
		sensitivitySlider.updateHandle(x);
		sensitivity = sensitivitySlider.getSensitivity();
		sensValueText.setText('Sensibilidad: ' + Math.round(sensitivity * 100) + '%');
		storage.set('sensitivity', sensitivity);
	}
};
// Button handlers
startButton.up = function (x, y, obj) {
	tween.to(startButton.scale, 200, {
		x: 1.0,
		y: 1.0
	});
	startGame();
};
settingsButton.up = function (x, y, obj) {
	tween.to(settingsButton.scale, 200, {
		x: 1.0,
		y: 1.0
	});
	showSettings();
};
backButton.up = function (x, y, obj) {
	tween.to(backButton.scale, 200, {
		x: 1.0,
		y: 1.0
	});
	showMenu();
};
function startGame() {
	gameState = 'playing';
	// Hide menu elements
	titleText.visible = false;
	startButton.visible = false;
	settingsButton.visible = false;
	// Show game elements
	spaceship = game.addChild(new Spaceship());
	spaceship.x = 2048 / 2;
	spaceship.y = 2000;
	slider = game.addChild(new TouchSlider());
	slider.x = 2048 / 2;
	slider.y = 2600;
	scoreTxt.visible = true;
	timeTxt.visible = true;
	// Reset game variables
	obstacles = [];
	obstacleSpawnTimer = 0;
	obstacleSpawnRate = 90;
	gameSpeed = 1;
	spaceshipSpeed = 1;
	survivalTime = 0;
	difficultyTimer = 0;
	lastScoreCheck = 0;
	LK.setScore(0);
	scoreTxt.setText('0');
	timeTxt.setText('Time: 0s');
}
function showSettings() {
	gameState = 'settings';
	// Hide menu elements
	titleText.visible = false;
	startButton.visible = false;
	settingsButton.visible = false;
	// Show settings elements
	settingsTitle.visible = true;
	sensitivitySlider.visible = true;
	sensValueText.visible = true;
	backButton.visible = true;
}
function showMenu() {
	gameState = 'menu';
	// Hide settings elements
	settingsTitle.visible = false;
	sensitivitySlider.visible = false;
	sensValueText.visible = false;
	backButton.visible = false;
	// Hide game elements if they exist
	if (spaceship) {
		spaceship.destroy();
		spaceship = null;
	}
	if (slider) {
		slider.destroy();
		slider = null;
	}
	scoreTxt.visible = false;
	timeTxt.visible = false;
	// Clear obstacles
	for (var i = 0; i < obstacles.length; i++) {
		obstacles[i].destroy();
	}
	obstacles = [];
	// Show menu elements
	titleText.visible = true;
	startButton.visible = true;
	settingsButton.visible = true;
}
game.update = function () {
	// Animate stars
	for (var s = 0; s < stars.length; s++) {
		stars[s].alpha = Math.sin(LK.ticks * 0.02 + s) * 0.3 + 0.5;
	}
	// Rotate planets slowly
	planet1.rotation += 0.005;
	planet2.rotation -= 0.003;
	// Only run game logic during gameplay
	if (gameState !== 'playing' || !spaceship) {
		return;
	}
	survivalTime++;
	difficultyTimer++;
	if (survivalTime % 60 === 0) {
		var seconds = Math.floor(survivalTime / 60);
		timeTxt.setText('Time: ' + seconds + 's');
	}
	// Every 15 seconds (900 ticks), increase obstacle speed by 5%
	if (difficultyTimer >= 900) {
		difficultyTimer = 0;
		gameSpeed *= 1.05;
		obstacleSpawnRate = Math.max(30, obstacleSpawnRate - 5);
	}
	// Every 50 points, increase spaceship speed slightly
	var currentScore = LK.getScore();
	if (Math.floor(currentScore / 50) > Math.floor(lastScoreCheck / 50)) {
		spaceshipSpeed += 0.1;
	}
	lastScoreCheck = currentScore;
	obstacleSpawnTimer++;
	if (obstacleSpawnTimer >= obstacleSpawnRate) {
		obstacleSpawnTimer = 0;
		var obstacle;
		if (Math.random() < 0.7) {
			obstacle = new Meteorite();
		} else {
			obstacle = new Debris();
		}
		obstacle.x = Math.random() * 1800 + 124;
		obstacle.y = -100;
		obstacle.speed *= gameSpeed;
		obstacle.lastY = obstacle.y;
		obstacles.push(obstacle);
		game.addChild(obstacle);
	}
	for (var i = obstacles.length - 1; i >= 0; i--) {
		var obstacle = obstacles[i];
		if (obstacle.lastY < 2800 && obstacle.y >= 2800) {
			LK.setScore(LK.getScore() + 10);
			scoreTxt.setText(LK.getScore());
		}
		if (obstacle.y > 2800) {
			obstacle.destroy();
			obstacles.splice(i, 1);
			continue;
		}
		if (spaceship.intersects(obstacle)) {
			LK.getSound('destroy').play();
			LK.effects.flashScreen(0xff0000, 1000);
			LK.showGameOver();
			showMenu();
			return;
		}
		obstacle.lastY = obstacle.y;
	}
};

===================================================================
--- original.js
+++ change.js
@@ -1,12 +1,39 @@
 /**** 
 * Plugins
 ****/ 
 var tween = LK.import("@upit/tween.v1");
+var storage = LK.import("@upit/storage.v1");
 
 /**** 
 * Classes
 ****/ 
+var BackButton = Container.expand(function (text) {
+	var self = Container.call(this);
+	var buttonBg = self.attachAsset('backButton', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	var buttonText = new Text2(text, {
+		size: 40,
+		fill: 0xFFFFFF
+	});
+	buttonText.anchor.set(0.5, 0.5);
+	self.addChild(buttonText);
+	self.down = function (x, y, obj) {
+		tween.to(self.scale, 200, {
+			x: 0.9,
+			y: 0.9
+		});
+	};
+	self.up = function (x, y, obj) {
+		tween.to(self.scale, 200, {
+			x: 1.0,
+			y: 1.0
+		});
+	};
+	return self;
+});
 var Debris = Container.expand(function () {
 	var self = Container.call(this);
 	var graphics = self.attachAsset('debris', {
 		anchorX: 0.5,
@@ -18,8 +45,35 @@
 		self.y += self.speed;
 	};
 	return self;
 });
+var MenuButton = Container.expand(function (text, color) {
+	var self = Container.call(this);
+	var buttonBg = self.attachAsset('menuButton', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	if (color) buttonBg.tint = color;
+	var buttonText = new Text2(text, {
+		size: 60,
+		fill: 0xFFFFFF
+	});
+	buttonText.anchor.set(0.5, 0.5);
+	self.addChild(buttonText);
+	self.down = function (x, y, obj) {
+		tween.to(self.scale, 200, {
+			x: 0.9,
+			y: 0.9
+		});
+	};
+	self.up = function (x, y, obj) {
+		tween.to(self.scale, 200, {
+			x: 1.0,
+			y: 1.0
+		});
+	};
+	return self;
+});
 var Meteorite = Container.expand(function () {
 	var self = Container.call(this);
 	var graphics = self.attachAsset('meteorite', {
 		anchorX: 0.5,
@@ -31,8 +85,67 @@
 		self.y += self.speed;
 	};
 	return self;
 });
+var SensitivitySlider = Container.expand(function () {
+	var self = Container.call(this);
+	var sliderBar = self.attachAsset('sensSlider', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	var sliderHandle = self.addChild(LK.getAsset('sensHandle', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	}));
+	self.minX = -280;
+	self.maxX = 280;
+	self.isDragging = false;
+	self.down = function (x, y, obj) {
+		self.isDragging = true;
+		self.updateHandle(x);
+	};
+	self.up = function (x, y, obj) {
+		self.isDragging = false;
+	};
+	self.updateHandle = function (x) {
+		var localX = x - self.x;
+		localX = Math.max(self.minX, Math.min(self.maxX, localX));
+		sliderHandle.x = localX;
+	};
+	self.getSensitivity = function () {
+		return (sliderHandle.x + 280) / 560; // 0 to 1
+	};
+	self.setSensitivity = function (value) {
+		sliderHandle.x = value * 560 - 280;
+	};
+	return self;
+});
+var SettingsButton = Container.expand(function (text) {
+	var self = Container.call(this);
+	var buttonBg = self.attachAsset('settingsButton', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	var buttonText = new Text2(text, {
+		size: 50,
+		fill: 0xFFFFFF
+	});
+	buttonText.anchor.set(0.5, 0.5);
+	self.addChild(buttonText);
+	self.down = function (x, y, obj) {
+		tween.to(self.scale, 200, {
+			x: 0.9,
+			y: 0.9
+		});
+	};
+	self.up = function (x, y, obj) {
+		tween.to(self.scale, 200, {
+			x: 1.0,
+			y: 1.0
+		});
+	};
+	return self;
+});
 var Spaceship = Container.expand(function () {
 	var self = Container.call(this);
 	var graphics = self.attachAsset('spaceship', {
 		anchorX: 0.5,
@@ -80,45 +193,227 @@
 
 /**** 
 * Game Code
 ****/ 
-var spaceship = game.addChild(new Spaceship());
-spaceship.x = 2048 / 2;
-spaceship.y = 2000;
+// Game state management
+var gameState = 'menu'; // 'menu', 'settings', 'playing'
+var sensitivity = storage.get('sensitivity') || 1.0;
+// Menu elements
+var titleText = new Text2('SPACE DODGER', {
+	size: 120,
+	fill: 0x00aaff
+});
+titleText.anchor.set(0.5, 0.5);
+titleText.x = 2048 / 2;
+titleText.y = 600;
+game.addChild(titleText);
+var startButton = game.addChild(new MenuButton('INICIAR PARTIDA', 0x4444aa));
+startButton.x = 2048 / 2;
+startButton.y = 1200;
+var settingsButton = game.addChild(new SettingsButton('SENSIBILIDAD'));
+settingsButton.x = 2048 / 2;
+settingsButton.y = 1400;
+// Settings menu elements (initially hidden)
+var settingsTitle = new Text2('AJUSTAR SENSIBILIDAD', {
+	size: 80,
+	fill: 0xFFFFFF
+});
+settingsTitle.anchor.set(0.5, 0.5);
+settingsTitle.x = 2048 / 2;
+settingsTitle.y = 800;
+settingsTitle.visible = false;
+game.addChild(settingsTitle);
+var sensitivitySlider = game.addChild(new SensitivitySlider());
+sensitivitySlider.x = 2048 / 2;
+sensitivitySlider.y = 1200;
+sensitivitySlider.visible = false;
+sensitivitySlider.setSensitivity(sensitivity);
+var sensValueText = new Text2('Sensibilidad: ' + Math.round(sensitivity * 100) + '%', {
+	size: 60,
+	fill: 0xFFFFFF
+});
+sensValueText.anchor.set(0.5, 0.5);
+sensValueText.x = 2048 / 2;
+sensValueText.y = 1350;
+sensValueText.visible = false;
+game.addChild(sensValueText);
+var backButton = game.addChild(new BackButton('VOLVER'));
+backButton.x = 2048 / 2;
+backButton.y = 1500;
+backButton.visible = false;
+// Decorative elements
+var stars = [];
+for (var i = 0; i < 50; i++) {
+	var star = game.addChild(LK.getAsset('star', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	}));
+	star.x = Math.random() * 2048;
+	star.y = Math.random() * 2732;
+	star.alpha = Math.random() * 0.8 + 0.2;
+	stars.push(star);
+}
+var planet1 = game.addChild(LK.getAsset('planet', {
+	anchorX: 0.5,
+	anchorY: 0.5
+}));
+planet1.x = 200;
+planet1.y = 300;
+planet1.alpha = 0.6;
+planet1.tint = 0x8888ff;
+var planet2 = game.addChild(LK.getAsset('planet', {
+	anchorX: 0.5,
+	anchorY: 0.5
+}));
+planet2.x = 1800;
+planet2.y = 2400;
+planet2.alpha = 0.4;
+planet2.tint = 0xff8888;
+planet2.scaleX = 0.7;
+planet2.scaleY = 0.7;
+// Game elements (initially hidden)
+var spaceship;
 var obstacles = [];
 var obstacleSpawnTimer = 0;
 var obstacleSpawnRate = 90;
 var gameSpeed = 1;
 var spaceshipSpeed = 1;
 var survivalTime = 0;
 var difficultyTimer = 0;
 var lastScoreCheck = 0;
-var slider = game.addChild(new TouchSlider());
-slider.x = 2048 / 2;
-slider.y = 2600;
+var slider;
+// GUI elements (created but initially hidden)
 var scoreTxt = new Text2('0', {
 	size: 80,
 	fill: 0xFFFFFF
 });
 scoreTxt.anchor.set(0.5, 0);
+scoreTxt.visible = false;
 LK.gui.top.addChild(scoreTxt);
 var timeTxt = new Text2('Time: 0s', {
 	size: 60,
 	fill: 0xFFFFFF
 });
 timeTxt.anchor.set(1, 0);
+timeTxt.visible = false;
 LK.gui.topRight.addChild(timeTxt);
 timeTxt.x = -20;
 timeTxt.y = 100;
 game.move = function (x, y, obj) {
-	if (slider.isDragging) {
+	if (gameState === 'playing' && slider && slider.isDragging) {
 		slider.updateHandle(x);
 		var sliderValue = slider.getSliderValue();
-		spaceship.x = 2048 / 2 + sliderValue * 800 * spaceshipSpeed;
+		spaceship.x = 2048 / 2 + sliderValue * 800 * spaceshipSpeed * sensitivity;
 		spaceship.x = Math.max(100, Math.min(1948, spaceship.x));
+	} else if (gameState === 'settings' && sensitivitySlider.isDragging) {
+		sensitivitySlider.updateHandle(x);
+		sensitivity = sensitivitySlider.getSensitivity();
+		sensValueText.setText('Sensibilidad: ' + Math.round(sensitivity * 100) + '%');
+		storage.set('sensitivity', sensitivity);
 	}
 };
+// Button handlers
+startButton.up = function (x, y, obj) {
+	tween.to(startButton.scale, 200, {
+		x: 1.0,
+		y: 1.0
+	});
+	startGame();
+};
+settingsButton.up = function (x, y, obj) {
+	tween.to(settingsButton.scale, 200, {
+		x: 1.0,
+		y: 1.0
+	});
+	showSettings();
+};
+backButton.up = function (x, y, obj) {
+	tween.to(backButton.scale, 200, {
+		x: 1.0,
+		y: 1.0
+	});
+	showMenu();
+};
+function startGame() {
+	gameState = 'playing';
+	// Hide menu elements
+	titleText.visible = false;
+	startButton.visible = false;
+	settingsButton.visible = false;
+	// Show game elements
+	spaceship = game.addChild(new Spaceship());
+	spaceship.x = 2048 / 2;
+	spaceship.y = 2000;
+	slider = game.addChild(new TouchSlider());
+	slider.x = 2048 / 2;
+	slider.y = 2600;
+	scoreTxt.visible = true;
+	timeTxt.visible = true;
+	// Reset game variables
+	obstacles = [];
+	obstacleSpawnTimer = 0;
+	obstacleSpawnRate = 90;
+	gameSpeed = 1;
+	spaceshipSpeed = 1;
+	survivalTime = 0;
+	difficultyTimer = 0;
+	lastScoreCheck = 0;
+	LK.setScore(0);
+	scoreTxt.setText('0');
+	timeTxt.setText('Time: 0s');
+}
+function showSettings() {
+	gameState = 'settings';
+	// Hide menu elements
+	titleText.visible = false;
+	startButton.visible = false;
+	settingsButton.visible = false;
+	// Show settings elements
+	settingsTitle.visible = true;
+	sensitivitySlider.visible = true;
+	sensValueText.visible = true;
+	backButton.visible = true;
+}
+function showMenu() {
+	gameState = 'menu';
+	// Hide settings elements
+	settingsTitle.visible = false;
+	sensitivitySlider.visible = false;
+	sensValueText.visible = false;
+	backButton.visible = false;
+	// Hide game elements if they exist
+	if (spaceship) {
+		spaceship.destroy();
+		spaceship = null;
+	}
+	if (slider) {
+		slider.destroy();
+		slider = null;
+	}
+	scoreTxt.visible = false;
+	timeTxt.visible = false;
+	// Clear obstacles
+	for (var i = 0; i < obstacles.length; i++) {
+		obstacles[i].destroy();
+	}
+	obstacles = [];
+	// Show menu elements
+	titleText.visible = true;
+	startButton.visible = true;
+	settingsButton.visible = true;
+}
 game.update = function () {
+	// Animate stars
+	for (var s = 0; s < stars.length; s++) {
+		stars[s].alpha = Math.sin(LK.ticks * 0.02 + s) * 0.3 + 0.5;
+	}
+	// Rotate planets slowly
+	planet1.rotation += 0.005;
+	planet2.rotation -= 0.003;
+	// Only run game logic during gameplay
+	if (gameState !== 'playing' || !spaceship) {
+		return;
+	}
 	survivalTime++;
 	difficultyTimer++;
 	if (survivalTime % 60 === 0) {
 		var seconds = Math.floor(survivalTime / 60);
@@ -166,8 +461,9 @@
 		if (spaceship.intersects(obstacle)) {
 			LK.getSound('destroy').play();
 			LK.effects.flashScreen(0xff0000, 1000);
 			LK.showGameOver();
+			showMenu();
 			return;
 		}
 		obstacle.lastY = obstacle.y;
 	}